Window sash operator



Dec. 31, 1940. c. 0. LARSON 2,226,824

WINDOW SASH OPERATOR Filed Oct. 30, 1939 2 Sheets-Sheet l IN VENTOR.

A Char/e5 QZars'o/z 7?? 1 Dc. 31, 1940. C; Q LAR N 2,226,824

WINDOW SASH OPERATOR Filed Oct. 30, 1939 ZSheets-Sheet 2 011/42 3B "321NVENTOR- Ch la; azazvflz Patented Dec. 31, 1940 WINDOW SASH OPERATORCharles 0. Larson, Sterling, 11]., assignor to Chas. I 0. Larson 00.,Sterling, 111., a corporation of Illinois Application October so, 1939,Serial No. 301,929

6 Claims.

This invention relates to holders for window sashes, and moreparticularly to those for use in holding storm window sashes in openposition.

Generally stated, the object of the invention is to provide a novel andimproved construction and arrangement whereby a toggle joint form ofbrace or holder is provided, having improved means for easily detachingthe same from the Window frame, and having improved means for changingor regulating the friction of a toggle joint, so that the sash, such asan ordinary storm window sash, may be held open at practically anydesired angle thereof.

It is also an object to provide certain details and specific features ofconstruction tending to increase the general efiiciency and desirabilityof a window sash brace or holder of this particular character.

To the foregoing and other useful ends, the ingo vention consists inmatters hereinafter set forth and claimed and shown in the accompanyingdrawings, in which- Fig. 1 is-a perspective of a window frame providedwith a sash holder or brace embodying the principles of the invention.

Fig. 2 is a vertical section on line 2-2 in Fig. 1, showing the sashentirely open in full lines, and partially open in dotted lines.

Fig. 3 is a similar view showing the sash in closed position, with thesaid brace or holder extending downwardly.

Fig. 4 is a similar view showing the said brace or holder extendingupwardly.

Fig. 5 is a similar view showing the said brace or holder extensionhorizontally.

Fig. 6 is a perspective of the toggle joint brace or holder shown inFigs. 1 to 5 of the drawings.

Fig. 7 is an enlarged section on line 'l'! in Fig. 6.

0 Fig. 8 is a perspective view of said brace or holder, showing theparts thereof separated.

Fig. 9 is an enlarged fragmentary detail view of a portion of the saidbrace or holder.

Fig. 10 is a vertical section on line I 0Hl in Fig. 9.

Fig. 11 is a section on line llll in Fig. 6.

Fig. 12 is an enlarged section on line l2-l2 in Fig. 5.

, As thus illustrated, the invention comprises a bracket plate I securedby screws to the sash 2 of an ordinary storm window. The brace or holdermember 3 is held by a pivot 4 on the bracket plate I.

A bracket plate 5 is secured by screws to the 65 window frame 6, and oneend of the brace or holder bar 1 is pivoted on this plate 5, in themanner shown more clearly in Figs. 9 and 10 of the drawings. As shown,the bar 1 has a pivot 8 having a head 9 for insertion through the holeill in the plate 5, this pivot having a circumferential 5 groove II, asshown. It will be seen that the plate 5 is pressed outwardly, providinga sort of. space or chamber on its inner side, and in this space a flatring I2 is pivoted on the plate at l3, this ring having two projectionsM for adjusting the ring l2 to cause its inner edge to either engage ordisengage the groove l I, so that the brace or holder bar 1 can beremoved from the plate 5, and easily restored thereto, when such isnecessary or desirable. 1

The ends of the bars 3 and l are pivotally connected together by a screwl5, which latter has a thumb nut IE on the threaded outer end thereof.It will be seen that fibre washers I! are interposed between the ends ofthe bars 3 and l, and 20 between the latter and the outside flexiblewalls of the clamp l8, so that by tightening the nut IS, the desiredamount of friction will be provided in the toggle joint thus provided.It will be seen that the bottom portion of the clamp I8 is formed 25with two shoulders l9 and 20 for engaging, respectively, the lower edgesof the bars 3 and 1, the joint at. such time being a little above thecenter, as shown more clearly in Fig. 2 of the drawings, so that thesash is held entirely open; but there is a fibre washer 2| in the jointbetween the plate I and the bar- 3, and this, with the fibre washers Hin the toggle joint, afford enough friction to hold. the brace or holderin any 5 adjustable position thereof, to suit the convenience, as shownin the drawings. I

It will also be seen that the bars 3 and I have .flanges 22 on theirlower edges, which flanges are engaged by the other edges of the twobars when 6 the latter are parallel, as shown in Figs. 3, 4, 5 and 12.

When it is desired to take off the storm sash, the ring [2 can beadjusted easily, by inserting something that will engage the projectionsI l, 5"

and this will detach the brace or holder from the window frame, leavingit attached to the sash, with no parts to be lost. Thereafter, when itis desired to put the sash on again, the head 9 is easily slippedthrough the opening l0, and the 50 ring I2 is easily adjusted to holdthe parts together.

The different parts, with the exception of the fibre Washers,*can bemade of any suitablemetal, pressed into the desired form, in the mannershown in the drawings, and the entire construction is simple andcomparatively inexpensive to manufacture.

It will be observed that the pivots 4 and 8 are in alignment when thetwo bars 3 and I are parallel, as shown in Figs. 3, 4 and 5 of thedrawings.

When the brace or holder is in the position shown in Fig. 4 of thedrawings, the window sash is locked against outward movement, as in suchcase the flanges 22 hold the two bars 3 and 1 parallel. However, whenthe brace or holder is in the position shown in Fig. 3 of the drawings,then the window sash can be pushed outwardly in the manner indicated inFigs. 1 and 2 of the drawings. On the other hand, when the brace orholder is in the position shown in Fig. 5 of the drawings, it isconvenient to insert the screws for fastening the plates I and 5 inposition on the window structure.

Obviously, the two stops l9 and 20 serve to hold the joint above thecenter, as shown in Fig.

2, when the two links or bars 3 and l are extended'for that purpose, sothat the pivot or toggle joint is self sustaining in this position.

The said joint is movable to its lowest position,

as shown in Fig. 3, when the sash is closed, and it is movable ,to itshighest position, as shown in Fig. 4, tolock the sash closed. On theother hand, when the joint is movable to its most inward position, asshown in Fig. 5, the fixture or device that serves as a brace or holderor operator for the sash is readily and conveniently attached inposition. Obviously, the fixture may remain on the sash when the latteris taken off the window, and this sash can be either a storm window or ascreen, as may be desired.

Thus, when the pivot stud 9 is pulled out of the hole H], the bracket 5is left smooth and without any projections thereon that might break offor that might catch or makeany trouble. In other words, the stud 9remains a permanent part of the link I and the operator will remainattached to the sash, and there is nothing that is liable to be lost. Inaddition, it will be seen that the two links 3 and I are duplicates, andthat with their flanges 22 they form a smooth straight bar handle,, whenthe two links are parallel, that can be grasped comfortably, with- :outinjuring the hand, when it is desired to adjust the toggle joint intodifferent positions about the axis of the bearing H! in the bracketplate. The sash operator thus constructed can be used on either side ofthe window, as may be desired. The device 12 will be operative at eitherside of the window, as it has two parallel engaging edges, either one ofwhich may engage the annular groove l l on the pivot stud. When the twolinks 3 and 1 are parallel, each flange 22 on one link has its edgeflush with the outer side of the other link, and hence the handle formedis smooth and straight and does not have any projections that mightinjure the hand.

It is obvious, of course, that the parts of the sash operator can beassembled for either a right or a left, so that the same parts can'beused on either side of the window. When the stud 8 is pulled out thedevice l2 remains fixed on the plate 5. Of course, when this plate 5 andthe bracket I are used on the left side of the window, they are turnedupside down. But the two bars 3 and 1 are always in position with theirflanges 22 downward, regardless of at which side of the window theoperator is used.

It is important to observe, therefore, that the 7 at the middle of theoperator, means to pivot one link on the sash, a bracket plate formed ineffect with a chamber at the inner side thereof, means to fasten saidplate in stationary position to the window frame, a pivot stud on theother link, said plate having a hole forming a bearing for said stud, sothat the inner end of the latter is inside said chamber, whereby theparts of the operator have three horizontal parallel axes of motion,said stud having an annular circumferential groove inside said chamher,and a device adjustable on said plate to engage and. disengage saidgroove, so that said stud can be pulled out of said hole when the sashis taken off, but said device remaining stationary on said plate whensaid joint is swung up or down about the axis of said bearing, saidlinks, each, having a flange on practically one entire edge thereof,forming a straight angle strip of each bar, with means in said jointspacing the flat opposing sides of said links uniformly apart, with theedge of each flange flush with the outer side .ofthe other link, whenthe two links are folded parallel, thus forming a smooth straight barhandlefree from projections on its edges and which can be graspedcomfortably and without danger of scratching the hand, when it isdesired to move said'joint into different positions about the axis ofsaid bearing. v

2. A window sash operator comprising a pair of links pivoted together toform a toggle joint at the middle of theoperator, means to pivot onelink on the sash, a bracket plate formed in effect with a chamber at theinner side thereof, means to fasten said plate in stationary position tothe window frame, a pivot stud on the other link, said plate having ahole forming a bearing for said stud, so that the inner end of thelatter is inside said chamber, whereby the parts of the operatorhavethree horizontal parallel axes of action, said stud having anannular circumferential groove inside said chamber and a deviceadjustable on said plate to engage and disengage said groove, so thatsaid stud can'be pulled out of said hole when the sash is'taken off, butsaid device remaining stationary 0I1,'S&id plate when said joint isswung up or down about the axis of said bearing, said 'links each havinga flange on practically one'entire edge thereof, forming a straightangle. strip of each bar, with means in said joint spacing the flatopposing sides of said links uniformly apart, with the edge of eachflange flush with the outerside of the other link, when the two linksare folded parallel, thus forming a smooth straight bar handle free fromprojections on its edges and which can begrasped comfortably and withoutdanger of scratching the hand, whenit is desired to move said joint intodifferent positions about the axis of said bearing, together withmeans'on said joint for engaging said bars at points adjacent to theends of said flanges to limit the upward movement of said joint when thesash is open.

3. A window sash operator comprising a pair of links pivoted together toform a toggle joint at the middle of the operator, means to pivot onelink on the sash, a bracket plate formed in effect with a chamber at theinner side thereof, means to fasten said plate in stationary position tothe window frame, a pivot stud on the other link, said plate having ahole forming a bearing for said stud, so that the inner end of thelatter is inside said chamber, each link being a duplicate of the other,so that said stud may be fixed on either link and either link may bepivoted on the sash, the parts of the operator having three horizontalparallel axes of motion, said stud having an annular circumferentialgroove inside said chamber, and a device adjustable on said plate toengage and disengage said groove, so that said stud can be pulled out ofsaid hole when the sash is taken off, but said device remainingstationary and undisturbed on said plate when said joint is swung up ordown about the axis of said bearing, said joint being above center whenthe sash is held open, and said joint having means to limit its upwardmovement when raised by hand into said above center position.

4. A structure as' specified in claim 3, said links each having a flangeon practically one entire edge thereof, forming a straight angle stripof each bar, with means in said joint spacing the flat opposing sides ofsaid links uniformly apart, with the edge of each flange flush with theouter side of the other link, when the two links are folded parallel,thus forming a smooth straight bar handle free from projec tions on itsedges and which can be grasped com-' fortably and without danger ofscratching the hand, when it is desired to move said joint intodifferent positions about the axis of said bearmg.

5. A structure as specified in claim 3, said device having a fixed axisof adjustment on said plate, so that when said stud is pulled out saiddevice remains on said plate.

6. A structure as specified in claim 3, said links each having a flangeon practically one entire edge thereof, forming a straight angle stripof each bar, with means in said joint spacing the flat opposing sides ofsaid links uniformly apart, with the edge of each flange flush with theouter side of the other link, when the two links are folded parallel,thus forming a smooth straight bar handle free from projections on itsedges and which can be grasped comfortably and without danger ofscratching the hand, when it is desired to move said joint intodifferent positions about the axis of said bearing, together with meanson said joint for engaging said bars at points adjacent to the ends ofsaid flanges to limit the upward movement of said

